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Finding the Fourth Proportional to 451,615.66, 677,468.85 and 119,191.66

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Solution

The fourth proportional to 451,615.66, 677,468.85 and 119,191.66 is: 178,799.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,615.66 : 677,468.85 = 119,191.66 : x
  2. Step 2: Convert to fraction form
    451,615.66/677,468.85 = 119,191.66/x
  3. Step 3: Cross multiply
    451,615.66x = 677,468.85 × 119,191.66
  4. Step 4: Simplify right side
    451,615.66x = 80,748,636,829.79
  5. Step 5: Solve for x
    x = 80,748,636,829.79/451,615.66
  6. Step 6: Final answer
    x = 178,799.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.